Home / 43,810.20-65,715.30-38,107.80

Finding the Fourth Proportional to 43,810.20, 65,715.30 and 38,107.80

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Solution

The fourth proportional to 43,810.20, 65,715.30 and 38,107.80 is: 57,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,810.20 : 65,715.30 = 38,107.80 : x
  2. Step 2: Convert to fraction form
    43,810.20/65,715.30 = 38,107.80/x
  3. Step 3: Cross multiply
    43,810.20x = 65,715.30 × 38,107.80
  4. Step 4: Simplify right side
    43,810.20x = 2,504,265,509.34
  5. Step 5: Solve for x
    x = 2,504,265,509.34/43,810.20
  6. Step 6: Final answer
    x = 57,161.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.